TASK 72-50-23-300-032 LPT Stage 3 Shroud Seal Segment - Weld Repair The Rear Hook Faces, Repair-032 (VRS4337)

DMC:V2500-A0-72-50-2303-05A-627A-C|Issue No:003.00|Issue Date:2018-02-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-50-23-300-032 LPT Stage 3 Shroud Seal Segment - Weld Repair The Rear Hook Faces, Repair-032 (VRS4337)

Effectivity

FIG/ITEM

PART NO.

01-350

3A2234

01-350

3A2947

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 3 turbine airseal segment

MTS 1187A (INCO 625)

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK number are in the SPM.

NOTE

For more equipment and materials necessary to do this repair refer to the SPM TASKS given below:
TASK 70-11-03-300-503
TASK 70-23-05-230-501
TASK 70-31-13-310-501
TASK 70-37-16-370-501
Equivalent materials and equipment may be used

NOTE

To identify the consumable materials, refer to the OPCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Vernier CaliperLOCALVernier Caliper
ProtractorLOCALProtractor
Radius Gage SetLOCALRadius Gage Set
Roughness MicrotesterLOCALRoughness Microtester
IAE 3M14517 Welding fixture0AM53IAE 3M145171
IAE 3M14520 Grinding fixture0AM53IAE 3M145201

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-287 WELDING FILLER WIRELOCALCoMat 03-287

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-23-110-129 Clean the Worn Surfaces before Welding

      1. Clean the surfaces to be welded.

      1. Use silicon carbide rag or equivalent.

    2. SUBTASK 72-50-23-220-166 Examine the Surfaces to be Welded

      1. Do the test for cracks.

      1. Refer to SPM TASK 70-23-05-230-501.

        Use medium sensitivity level.

        No cracks are permitted.

    3. SUBTASK 72-50-23-110-130 Clean the Stage 3 Turbine Airseal Segment

      1. Aqueous degrease.

      1. Refer to SPM TASK 70-11-03-300-503.

    4. SUBTASK 72-50-23-310-087 Weld Repair the Worn Surfaces

      1. Gas Tungsten Arc Weld the worn surfaces.

      1. Refer to SPM TASK 70-31-13-310-501 and Figure.

        Make sure that there is sufficient material to do last machining.

        To prevent honeycomb braze damage, several weld passes should be made. Prevent too much temperature build-up.

    5. SUBTASK 72-50-23-220-167 Examine the Welded Surfaces for Cracks

      1. Do the test for cracks.

      1. Refer to SPM TASK 70-23-05-230-501.

        Use medium sensitivity level.

        No cracks are permitted.

    6. SUBTASK 72-50-23-370-002 Heat Treat after Weld Repair

      1. Heat treat the airseal segment.

      1. Refer to SPM TASK 70-37-16-370-501.

        Stress Relief Cycle 10.

    7. SUBTASK 72-50-23-320-085 Machine the Welded Areas

      1. Machine the welded areas.

      2. Dress the welded areas.

      1. Welded areas must be equal to the original contours and must be flush with the adjacent surfaces.

    8. SUBTASK 72-50-23-220-168 Examine the Machined Areas

      1. Examine dimensionally.

      1. Refer to Figure.

        Use vernier caliper, protractor, radius gage set and roughness tester.

    9. SUBTASK 72-50-23-220-169 Examine the Machined Areas for Cracks

      1. Do the test for cracks.

      1. Refer to SPM TASK 70-23-05-230-501.

        Use medium sensitivity level.

        No cracks are permitted.

    10. SUBTASK 72-50-23-110-131 Clean the Stage 3 Turbine Airseal Segment

      1. Aqueous degrease.

      1. Refer to SPM TASK 70-11-03-300-503.

    11. Figure: Weld repair dimensions of the stage 3 airseal segment rear hook faces

    Weld repair dimensions of the stage 3 airseal segment rear hook faces

    Figure: Weld repair dimensions of the stage 3 airseal segment rear hook faces

    Weld repair dimensions of the stage 3 airseal segment rear hook faces

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added part number

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-287
Type:sp01
Supply Short Name:CoMat 03-287 WELDING FILLER WIRE
Supply Name:CoMat 03-287 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
INCONEL 625 AMS 5837 AMS 5837
Suppliers:
ManufacturerRemarks
LOCAL
2R602
55596
58401
Manufacturer Code:0AM53
Tool Number:IAE 3M14517
Tool Name:IAE 3M14517 Welding fixture
Manufacturer Code:0AM53
Tool Number:IAE 3M14520
Tool Name:IAE 3M14520 Grinding fixture
Manufacturer Code:LOCAL
Tool Number:Protractor
Tool Name:Protractor
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